/**

 * 仿照Android池化技术

 * @author fgtian

 *

 */

public class ObjectCacheTest {

	public static class ObjectItem {

		private static int sPoolSize = 0;

		private static final int MAX_CACHE = 10;

		private static final Object sPoolLock = new Object();

		private static ObjectItem sPool = null;

		private ObjectItem mNext = null;

		private int mValue;

		public static ObjectItem obtain() {

			synchronized (sPoolLock) {

				if (null != sPool) {

					ObjectItem item = sPool;

					sPool = item.mNext;

					item.mNext = null;

					--sPoolSize;

					return item;

				}

			}

			return new ObjectItem();

		}

		public static ObjectItem obtain(int value) {

			synchronized (sPoolLock) {

				if (null != sPool) {

					ObjectItem item = sPool;

					sPool = item.mNext;

					item.mNext = null;

					--sPoolSize;

					item.mValue = value;

					return item;

				}

			}

			return new ObjectItem(value);

		}

		public void recycle() {

			synchronized (sPoolLock) {

				if (sPoolSize < MAX_CACHE) {

					mValue = 0;

					this.mNext = sPool;

					sPool = this;

					sPoolSize++;

				}

			}

		}

		public ObjectItem() {

		}

		public ObjectItem(int value) {

			mValue = value;

		}

		@Override

		public String toString() {

			return String.valueOf(mValue);

		}

	}

	public static final void main(String[] args) {

		ObjectItem item1 = ObjectItem.obtain(1);

		item1.recycle();

		ObjectItem item2 = ObjectItem.obtain(3);

		if (item1 == item2) {

			System.out.println("YES, USE THE SAME OBJECT");

		} else {

			System.out.println("ERROR");

		}

	}

}